Plow and cultivator



W J. DAVIDSON. Plow and Cultivator.

' No. 231,701. Patented Aug. 31,1880.

UNITED STATES PATENT OFFICE.

WILLIAM J. DAVIDSON, OF BIG SPRING, VIRGINIA.

PLOW AND CULTIVATO R.

SPECIFICATION forming part of Letters Patent No. 231,701, dated August 31, 1880.

Application filed February 7, 1880.

To all whom it may concern:

Be it known that I, WILLIAM J. DAVIDSON, of Big Spring, Montgomery county, Virginia, have invented Improvements in Plows and Cultivators, of which the following is a specication.

My invention is an improvement in plows and cultivators, whereby to facilitate the attachment of one or more plow-standards to and their adjustment on a single plow-beam, and to secure the lateral and angular adj ustment of the standards and fasten them securel y after adjustment and maintain the draftline central with the plows.

In the drawings forniinga part of this specification, Figure 1 is a perspective view of my improved cultivator-plow. Fig. 2 is a rear end view; Fig. 3, a plan, and Fig. 4 a side view of part of the plow.

H represents the plow-beam, which is provided with the usual handles J J, and with two arms, A A, projecting laterally to the san'le side, the arm A being the longest, and being perforated to receive two clamp-bolts, a a, which extend through slots b in an L- shaped bracket, B, which the bolts secure adjustably to the arm A. To a slot, or to a se ries of holes, 0, in the arm A, is adapted a draft-hook, G, which is secured adjustably bya nut.

D is a bracket, which I construct preferably in the form of a yoke, secured to the beam H." In the bar f of the bracket D is a bolthole for the reception of the pivot-bolt t' of the cultivator-standard E, which, in this instance, is curved, one end being pointed or carrying the blade I, and the other having a slot, m, which is at an angle to a slot, at, in the bar f, as best shown in Fig. 4. The crossed slots m n, where they coincide, present an opening for the passage of the bolt t. by which the standard may be clamped to the bar and secured cured with but little strain on the bolt or liability to slip.

The bracket 13 has a slot, at, and is perforated to receive the pivot-bolt vlof a second standard, E, which has a slot, m, and is secured and adjusted on the bracket B in like manner as the first-named standard is on the bracket D.

The bracket B may be laterally adjusted after loosening the bolts a a, so as to vary the lateral distances between the plow-standards, and the draft-hook C may be adjusted in the opening or openings 0, so as to be always on the line midway between the standards, that the plow will pull evenly. When the standards are not laterally adjustable the adjustment of the hook O is not essential.

When but one blade is to be used the bracket B may be removed and replaced in the position shown in dotted lines, Fig. 3, and the standard or a eolter then bolted to either side; or a eolter or plow-standard may then be secured directly to the plow-beam in front of that on the bracket B by means of a clip or clamp-bolt passed through a slot, 8, in the beam adapted to receive it. It will be apparent that this standard may be secured directly to the beam Hinstead of to the bracket D, in which case the slot .n is made in the beam or the slot 8 used to receive the bolt t.

I claim 1. The combination of the plow-beam H, having the lateral arm A, the L shaped bracket B, secured adjustably to the arm A, and adapted to be attached in different 'positions, and a standard, E, carried by the bracket B, substantially as herein set forth.

2. The combination of a curved standard, E, turning on a fixed pivot, t', and having a slot, m, the plow-beam or bracket, having a slot, a, crossing the slot m, and the adjustable bolt t, passing through both slots, as herein specified, for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WVitnesses: W. J. DAVIDSON.

F. M. GREEN,

COURTNEY A. 000mm. 

